Disclosed is a method and process for manifesting sustainable improvement in fisheries productivity in Ocean waters. This method and process comprises (1) selecting a location of the Ocean that is considered both High Nutrient Low Chlorophyll (HNLC) and (2) that this location is within proximity to fisheries feeding grounds or migratory routes or within areas that are considered to be fish feeding areas (3) within this location a surface sea height anomaly (Ocean Eddy) is defined using satellite s.s.h. data (4) applying a fertilizer that contains an Iron compound within the Ocean Eddy.